Metal construction works for the bus depot roof in Freising

Metal construction works for the roof of the bus parking areas (open large garage) of a bus depot with electric charging infrastructure in Freising: technical processing, including workshop and assembly planning, and any necessary supplementary static verifications; manufacturing, verification, and assembly of constructions based on execution and detailed planning as well as approval statics. A significant component consists of skylight glazings for natural lighting of the roof area, executed as inclined aluminum post-and-beam systems, integrated into the wooden supporting structure of the roof. Skylight elements made of powder-coated aluminum profiles and laminated safety glass, executed according to requirements for overhead glazing and relevant standards; ensuring safe dissipation of dead, wind, and snow loads, as well as permanently rain-proof connection to the roof waterproofing and adjacent wooden components. Scope includes numerous skylight elements in various dimensions with lengths between approx. 2.35 m and 2.95 m at a height of approx. 0.89 m; delivery and assembly including all supporting profiles, seals, fasteners, connection plates, and drainage details. Special requirements for permanent watertightness, accommodation of deformations, and damage-free integration into the roof structure. Delivery and assembly of louver elements as a fire protection compensatory measure for heat extraction and natural ventilation of the roof. Elements executed as prefabricated louver ventilation grilles with circumferential frame constructions and fixed louvers, integrated into the on-site box girders; ensuring permanent natural ventilation, dissipation of warm air and smoke, and reduction of rainwater ingress. According to the fire protection concept, a free ventilation cross-section of at least 20 % and the required free opening area must be ensured. Louver elements manufactured in several sizes and assembled, including all connection, fastening, and cover plates; constructions must be permanently rain-proof and connected to the roof waterproofing. All components must be designed for a service life of at least 20 years and executed with permanently effective corrosion protection; low-maintenance systems without regular recoating are to be provided. Services also include all fasteners and connectors, sealings, connection works, and ancillary services; further items as per the tender documents.

Tender documents

Additional details